/*
 * Copyright 2013 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.xd.shell;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.shell.plugin.PromptProvider;
import org.springframework.stereotype.Component;

/**
 * A provider that sets the shell prompt to xd:>
 * 
 * @author Mark Pollack
 * @author Gunnar Hillert
 * @since 1.0
 * 
 */
@Component
@Order(Ordered.HIGHEST_PRECEDENCE)
public class XDShellPromptProvider implements PromptProvider {

	@Autowired
	private XDShell xdShell;

	@Override
	public String getProviderName() {
		return "xd-prompt";
	}

	@Override
	public String getPrompt() {
		if (xdShell.getSpringXDOperations() == null) {
			return "server-unknown:>";
		}
		else {
			return "xd:>";
		}
	}
}
